Dynamics of anisotropic colloidal systems : What to choose, DLS, DDM or XPCS?
(2024) In Journal of Colloid and Interface Science 660. p.314-320- Abstract
Investigation of the dynamics of colloids in bulk can be hindered by issues such as multiple scattering and sample opacity. These challenges are exacerbated when dealing with inorganic materials. In this study, we employed a model system of Akaganeite colloidal rods to assess three leading dynamics measurement techniques: 3D-(depolarized) dynamic light scattering (3D-(D)DLS), polarized-differential dynamic microscopy (P-DDM), and x-ray photon correlation spectroscopy (XPCS). Our analysis revealed that the translational and rotational diffusion coefficients captured by these methods show a remarkable alignment. Additionally, by examining the q-ranges and maximum volume fractions for each approach, we offer insights into the best... (More)
Investigation of the dynamics of colloids in bulk can be hindered by issues such as multiple scattering and sample opacity. These challenges are exacerbated when dealing with inorganic materials. In this study, we employed a model system of Akaganeite colloidal rods to assess three leading dynamics measurement techniques: 3D-(depolarized) dynamic light scattering (3D-(D)DLS), polarized-differential dynamic microscopy (P-DDM), and x-ray photon correlation spectroscopy (XPCS). Our analysis revealed that the translational and rotational diffusion coefficients captured by these methods show a remarkable alignment. Additionally, by examining the q-ranges and maximum volume fractions for each approach, we offer insights into the best technique for investigating the dynamics of anisotropic systems at the colloidal scale.
(Less)
- author
- Kamal, Md Arif LU ; Brizioli, Matteo ; Zinn, Thomas ; Narayanan, Theyencheri ; Cerbino, Roberto ; Giavazzi, Fabio and Pal, Antara LU
- organization
- publishing date
- 2024-04-15
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Colloid and Interface Science
- volume
- 660
- pages
- 7 pages
- publisher
- Elsevier
- external identifiers
-
- pmid:38244498
- scopus:85182733574
- ISSN
- 0021-9797
- DOI
- 10.1016/j.jcis.2023.12.163
- language
- English
- LU publication?
- yes
- id
- d0134fb4-f9c0-4d98-a5e9-283a71f0ecc5
- date added to LUP
- 2024-02-19 15:41:45
- date last changed
- 2024-05-17 21:20:19
@article{d0134fb4-f9c0-4d98-a5e9-283a71f0ecc5, abstract = {{<p>Investigation of the dynamics of colloids in bulk can be hindered by issues such as multiple scattering and sample opacity. These challenges are exacerbated when dealing with inorganic materials. In this study, we employed a model system of Akaganeite colloidal rods to assess three leading dynamics measurement techniques: 3D-(depolarized) dynamic light scattering (3D-(D)DLS), polarized-differential dynamic microscopy (P-DDM), and x-ray photon correlation spectroscopy (XPCS). Our analysis revealed that the translational and rotational diffusion coefficients captured by these methods show a remarkable alignment. Additionally, by examining the q-ranges and maximum volume fractions for each approach, we offer insights into the best technique for investigating the dynamics of anisotropic systems at the colloidal scale.</p>}}, author = {{Kamal, Md Arif and Brizioli, Matteo and Zinn, Thomas and Narayanan, Theyencheri and Cerbino, Roberto and Giavazzi, Fabio and Pal, Antara}}, issn = {{0021-9797}}, language = {{eng}}, month = {{04}}, pages = {{314--320}}, publisher = {{Elsevier}}, series = {{Journal of Colloid and Interface Science}}, title = {{Dynamics of anisotropic colloidal systems : What to choose, DLS, DDM or XPCS?}}, url = {{http://dx.doi.org/10.1016/j.jcis.2023.12.163}}, doi = {{10.1016/j.jcis.2023.12.163}}, volume = {{660}}, year = {{2024}}, }